Tubule featherbed

Details Tubule featherbed Tubule featherbed

2008-04-15

2008-04-15

Santos, Robert G. (Department: 3673)

Beds

Mattress

Supported on or removably attachable to another mattress

C005S950000, C005S500000

Reexamination Certificate

active

07356864

ABSTRACT:
The featherbed includes upper and lower fabric layers, with the upper layer being longer than the lower layer. Lines of stitching connect the upper layer to the lower layer at spaced lateral lines along the length of the featherbed, thereby defining successive abutting lateral half-tubules, which are filled such that the upper layer extends away from the lower layer in a curved configuration, defining a plurality of half-tubules, generally in the shape of half-ellipses, with the fill density being greater, approximately 21% than that of a similar-sized conventional featherbed.

REFERENCES:
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patent: 3459179 (1969-08-01), Olesen
patent: 4163297 (1979-08-01), Neumark
patent: 4274169 (1981-06-01), Standiford
patent: 4843666 (1989-07-01), Elesh et al.
patent: 4922564 (1990-05-01), Thomas
patent: 4924541 (1990-05-01), Inagaki
patent: 5117519 (1992-06-01), Thomas
patent: 5572757 (1996-11-01), O'Sullivan
patent: 5713089 (1998-02-01), Ferrante
patent: 6058536 (2000-05-01), Henry
patent: 6745419 (2004-06-01), Delfs et al.
patent: 7080421 (2006-07-01), Delfs
patent: 2004/6745419 (2004-06-01), Delfs et al.
patent: 2005/6961970 (2005-09-01), Pedersen

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